.page-about {
  --about-cut: 18px;
  --about-gap: 20px;
  color: var(--bb-paper);
  font-family: var(--bb-font-body);
  line-height: 1.7;
  padding-bottom: 56px;
}

.page-about .about-crumbs {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  padding-top: 18px;
  font-family: var(--bb-font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--bb-muted);
}

.page-about .about-crumbs a {
  color: var(--bb-muted);
  text-decoration: none;
  transition: color 0.2s var(--bb-ease);
}

.page-about .about-crumbs a:hover {
  color: var(--bb-lime);
}

.page-about .about-crumbs__sep {
  color: var(--bb-line);
}

.page-about .about-crumbs [aria-current="page"] {
  color: var(--bb-paper);
}

/* ---------- hero ---------- */

.page-about .about-hero {
  padding: 20px 0 4px;
}

.page-about .about-hero__grid {
  display: grid;
  gap: 26px;
}

.page-about .about-hero__copy {
  position: relative;
}

.page-about .about-hero__rail {
  display: none;
}

.page-about .about-hero__eyebrow {
  margin: 0;
  font-family: var(--bb-font-mono);
  font-size: 12px;
  letter-spacing: 0.22em;
  color: var(--bb-lime);
}

.page-about .about-hero__title {
  margin: 12px 0 18px;
  font-family: var(--bb-font-display);
  font-weight: 800;
  font-size: clamp(38px, 9.2vw, 72px);
  line-height: 0.98;
  letter-spacing: -0.03em;
  color: var(--bb-white);
}

.page-about .about-hero__title em {
  font-style: normal;
  color: var(--bb-lime);
}

.page-about .about-hero__lede {
  margin: 0 0 22px;
  max-width: 36em;
  font-size: 16px;
  line-height: 1.85;
  color: var(--bb-paper);
}

.page-about .about-hero__facts {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1px;
  margin: 0;
  padding: 0;
  list-style: none;
  background: var(--bb-line);
  border: 1px solid var(--bb-line);
}

.page-about .about-hero__facts li {
  display: grid;
  gap: 3px;
  padding: 12px 10px 13px;
  background: var(--bb-ink-2);
}

.page-about .about-hero__k {
  font-family: var(--bb-font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  color: var(--bb-muted);
}

.page-about .about-hero__v {
  font-family: var(--bb-font-mono);
  font-size: 13px;
  color: var(--bb-paper);
  word-break: break-word;
}

.page-about .about-hero__frame {
  position: relative;
  margin: 0;
  aspect-ratio: 16 / 11;
  overflow: hidden;
  border: 1px solid var(--bb-line);
  background: var(--bb-ink-2);
  clip-path: polygon(
    0 0,
    calc(100% - var(--about-cut)) 0,
    100% var(--about-cut),
    100% 100%,
    var(--about-cut) 100%,
    0 calc(100% - var(--about-cut))
  );
}

.page-about .about-hero__frame img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: saturate(0.8) contrast(1.06) brightness(0.92);
}

.page-about .about-hero__cap {
  position: absolute;
  right: 0;
  bottom: 0;
  left: 0;
  padding: 28px 14px 12px;
  font-family: var(--bb-font-mono);
  font-size: 11px;
  letter-spacing: 0.06em;
  color: var(--bb-paper);
  background: linear-gradient(to top, rgba(11, 20, 18, 0.94), rgba(11, 20, 18, 0));
}

/* ---------- chapter nav ---------- */

.page-about .about-toc {
  display: grid;
  gap: 10px;
  margin-top: 30px;
  padding: 14px 0;
  border-top: 1px solid var(--bb-line);
  border-bottom: 1px solid var(--bb-line);
}

.page-about .about-toc__label {
  font-family: var(--bb-font-mono);
  font-size: 11px;
  letter-spacing: 0.3em;
  color: var(--bb-muted);
}

.page-about .about-toc__list {
  display: flex;
  gap: 8px;
  margin: 0;
  padding: 0 0 2px;
  list-style: none;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

.page-about .about-toc__list a {
  display: inline-flex;
  align-items: baseline;
  gap: 6px;
  padding: 7px 12px;
  border: 1px solid var(--bb-line);
  color: var(--bb-paper);
  text-decoration: none;
  font-size: 13px;
  white-space: nowrap;
  transition: border-color 0.2s var(--bb-ease), color 0.2s var(--bb-ease), background 0.2s var(--bb-ease);
}

.page-about .about-toc__list a b {
  font-family: var(--bb-font-mono);
  font-size: 11px;
  font-weight: 500;
  color: var(--bb-lime);
}

.page-about .about-toc__list a:hover,
.page-about .about-toc__list a:focus-visible {
  border-color: var(--bb-lime);
  background: rgba(198, 255, 61, 0.08);
  color: var(--bb-lime);
}

/* ---------- chapter frame ---------- */

.page-about .about-chapter {
  padding-top: 48px;
  scroll-margin-top: 24px;
}

.page-about .about-chapter__head {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 14px;
  align-items: start;
  margin-bottom: 20px;
  padding-top: 16px;
  border-top: 1px solid var(--bb-line);
}

.page-about .about-chapter__num {
  padding-top: 6px;
  font-family: var(--bb-font-mono);
  font-size: 13px;
  letter-spacing: 0.1em;
  color: var(--bb-lime);
}

.page-about .about-chapter__title {
  margin: 0;
  font-family: var(--bb-font-display);
  font-weight: 800;
  font-size: clamp(23px, 5vw, 36px);
  line-height: 1.2;
  letter-spacing: -0.015em;
  color: var(--bb-white);
}

/* ---------- two column prose ---------- */

.page-about .about-cols {
  display: grid;
  gap: 16px;
}

.page-about .about-cols p {
  margin: 0;
  font-size: 15px;
  line-height: 1.85;
  color: var(--bb-paper);
}

.page-about .about-cols .about-cols__lead {
  padding-left: 16px;
  border-left: 2px solid var(--bb-lime);
  font-size: 17px;
  line-height: 1.78;
  color: var(--bb-white);
}

/* ---------- timeline ---------- */

.page-about .about-timeline {
  display: grid;
  gap: 10px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-about .about-stage__item {
  border: 1px solid var(--bb-line);
  border-left: 2px solid var(--bb-line);
  background: var(--bb-ink-2);
  clip-path: polygon(0 0, calc(100% - 14px) 0, 100% 14px, 100% 100%, 0 100%);
  transition: border-color 0.24s var(--bb-ease), background 0.24s var(--bb-ease);
}

.page-about .about-stage__item[open] {
  border-left-color: var(--bb-lime);
  background: var(--bb-panel);
}

.page-about .about-stage__sum {
  position: relative;
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 2px 12px;
  align-items: baseline;
  padding: 15px 44px 15px 16px;
  list-style: none;
  cursor: pointer;
}

.page-about .about-stage__sum::-webkit-details-marker {
  display: none;
}

.page-about .about-stage__no {
  font-family: var(--bb-font-mono);
  font-size: 12px;
  color: var(--bb-lime);
}

.page-about .about-stage__name {
  font-family: var(--bb-font-display);
  font-weight: 800;
  font-size: 18px;
  letter-spacing: -0.01em;
  color: var(--bb-white);
}

.page-about .about-stage__hint {
  grid-column: 2;
  font-size: 13px;
  color: var(--bb-muted);
}

.page-about .about-stage__sum::after {
  content: "+";
  position: absolute;
  top: 12px;
  right: 15px;
  font-family: var(--bb-font-mono);
  font-size: 20px;
  line-height: 1;
  color: var(--bb-lime);
}

.page-about .about-stage__item[open] .about-stage__sum::after {
  content: "–";
}

.page-about .about-stage__body {
  display: grid;
  gap: 10px;
  padding: 0 16px 18px;
}

.page-about .about-stage__body p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.85;
  color: var(--bb-paper);
}

.page-about .about-stage__body p.about-stage__meta {
  font-family: var(--bb-font-mono);
  font-size: 11.5px;
  letter-spacing: 0.06em;
  color: var(--bb-amber);
}

.page-about .about-note {
  margin: 18px 0 0;
  padding: 12px 14px;
  border-left: 2px solid var(--bb-amber);
  background: rgba(255, 177, 59, 0.07);
  font-size: 13.5px;
  line-height: 1.8;
  color: var(--bb-paper);
}

/* ---------- tag grid ---------- */

.page-about .about-tags {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
  margin: 22px 0 0;
  padding: 0;
  list-style: none;
}

.page-about .about-tag {
  display: grid;
  gap: 6px;
  align-content: start;
  padding: 14px 13px 16px;
  border: 1px solid var(--bb-line);
  border-left: 2px solid var(--bb-line);
  background: var(--bb-ink-2);
  clip-path: polygon(0 0, calc(100% - 12px) 0, 100% 12px, 100% 100%, 0 100%);
  transition: background 0.22s var(--bb-ease), border-color 0.22s var(--bb-ease), transform 0.22s var(--bb-ease);
}

.page-about .about-tag:hover,
.page-about .about-tag:focus-within {
  background: var(--bb-panel);
  border-left-color: var(--bb-lime);
  transform: translateY(-3px);
}

.page-about .about-tag__no {
  font-family: var(--bb-font-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--bb-muted);
}

.page-about .about-tag__name {
  font-family: var(--bb-font-display);
  font-weight: 800;
  font-size: 19px;
  letter-spacing: -0.01em;
  color: var(--bb-white);
}

.page-about .about-tag__desc {
  margin: 0;
  font-size: 13px;
  line-height: 1.7;
  color: var(--bb-muted);
}

/* ---------- figures ---------- */

.page-about .about-figure {
  margin: 24px 0 0;
  overflow: hidden;
  border: 1px solid var(--bb-line);
  background: var(--bb-ink-2);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 22px), calc(100% - 22px) 100%, 0 100%);
}

.page-about .about-figure img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  filter: saturate(0.72) contrast(1.08);
}

.page-about .about-figure figcaption {
  padding: 10px 14px;
  border-top: 1px solid var(--bb-line);
  font-family: var(--bb-font-mono);
  font-size: 11px;
  letter-spacing: 0.05em;
  color: var(--bb-muted);
}

/* ---------- rhythm ---------- */

.page-about .about-rhythm {
  display: grid;
  gap: 20px;
  padding: 22px 16px;
  border: 1px solid var(--bb-line);
  background:
    linear-gradient(135deg, rgba(97, 230, 195, 0.12), rgba(23, 40, 34, 0.42) 46%, rgba(11, 20, 18, 0) 82%),
    var(--bb-ink-2);
  clip-path: polygon(0 0, calc(100% - 22px) 0, 100% 22px, 100% 100%, 0 100%);
}

.page-about .about-rhythm__time {
  display: block;
  font-family: var(--bb-font-mono);
  font-size: 42px;
  line-height: 1;
  letter-spacing: -0.02em;
  color: var(--bb-amber);
}

.page-about .about-rhythm__cap {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-top: 10px;
  font-family: var(--bb-font-mono);
  font-size: 11.5px;
  letter-spacing: 0.1em;
  color: var(--bb-muted);
}

.page-about .about-rhythm__lamp {
  display: inline-block;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--bb-amber);
  box-shadow: 0 0 12px rgba(255, 177, 59, 0.8);
  animation: about-lamp 3.2s ease-in-out infinite;
}

@keyframes about-lamp {
  0%,
  100% {
    opacity: 0.35;
    transform: scale(0.88);
  }
  50% {
    opacity: 1;
    transform: scale(1);
  }
}

.page-about .about-rhythm__body p {
  margin: 0 0 14px;
  font-size: 15px;
  line-height: 1.85;
  color: var(--bb-paper);
}

.page-about .about-rhythm__list {
  display: grid;
  gap: 10px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-about .about-rhythm__list li {
  display: grid;
  gap: 3px;
  padding-left: 14px;
  border-left: 1px solid var(--bb-line);
  font-size: 14px;
  line-height: 1.8;
  color: var(--bb-paper);
}

.page-about .about-rhythm__list span {
  font-family: var(--bb-font-mono);
  font-size: 11.5px;
  letter-spacing: 0.1em;
  color: var(--bb-lime);
}

/* ---------- team ---------- */

.page-about .about-team {
  display: grid;
  gap: 6px;
}

.page-about .about-team__copy p {
  margin: 0 0 16px;
  font-size: 15px;
  line-height: 1.85;
  color: var(--bb-paper);
}

.page-about .about-team__roles {
  display: grid;
  gap: 1px;
  margin: 0 0 18px;
  padding: 1px;
  list-style: none;
  background: var(--bb-line);
}

.page-about .about-team__roles li {
  display: grid;
  gap: 4px;
  padding: 13px 14px;
  background: var(--bb-ink-2);
}

.page-about .about-team__role {
  font-family: var(--bb-font-display);
  font-weight: 800;
  font-size: 15px;
  letter-spacing: 0.01em;
  color: var(--bb-lime);
}

.page-about .about-team__desc {
  font-size: 13.5px;
  line-height: 1.75;
  color: var(--bb-muted);
}

.page-about .about-figure--team {
  margin-top: 8px;
}

/* ---------- reach ---------- */

.page-about .about-reach__lead {
  margin: 0 0 20px;
  max-width: 38em;
  font-size: 15px;
  line-height: 1.85;
  color: var(--bb-paper);
}

.page-about .about-numbers {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  border: 1px solid var(--bb-line);
  background: var(--bb-line);
}

.page-about .about-numbers__cell {
  display: grid;
  gap: 4px;
  padding: 16px 14px;
  background: var(--bb-ink-2);
}

.page-about .about-numbers__n {
  font-family: var(--bb-font-mono);
  font-size: clamp(24px, 6vw, 34px);
  line-height: 1.05;
  letter-spacing: -0.02em;
  color: var(--bb-lime);
}

.page-about .about-numbers__l {
  font-family: var(--bb-font-mono);
  font-size: 11px;
  letter-spacing: 0.06em;
  color: var(--bb-muted);
}

.page-about .about-reach__text {
  margin: 20px 0 0;
  font-size: 14.5px;
  line-height: 1.85;
  color: var(--bb-paper);
}

.page-about .about-cta {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 22px;
}

.page-about .about-cta a {
  padding: 11px 17px;
  border: 1px solid var(--bb-line);
  background: var(--bb-ink-2);
  color: var(--bb-paper);
  font-family: var(--bb-font-mono);
  font-size: 13px;
  letter-spacing: 0.03em;
  text-decoration: none;
  transition: border-color 0.2s var(--bb-ease), color 0.2s var(--bb-ease), background 0.2s var(--bb-ease);
}

.page-about .about-cta a:hover,
.page-about .about-cta a:focus-visible {
  border-color: var(--bb-lime);
  color: var(--bb-lime);
  background: rgba(198, 255, 61, 0.08);
}

.page-about .about-cta a:first-child {
  border-color: var(--bb-lime);
  background: var(--bb-lime);
  color: var(--bb-ink);
  font-weight: 700;
}

.page-about .about-cta a:first-child:hover,
.page-about .about-cta a:first-child:focus-visible {
  background: var(--bb-lime-deep);
  border-color: var(--bb-lime-deep);
  color: var(--bb-ink);
}

/* ---------- end ---------- */

.page-about .about-end {
  margin-top: 44px;
}

.page-about .about-totop {
  display: flex;
  align-items: center;
  gap: 8px;
  padding-top: 14px;
  border-top: 1px solid var(--bb-line);
  font-family: var(--bb-font-mono);
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--bb-muted);
  text-decoration: none;
  transition: color 0.2s var(--bb-ease);
}

.page-about .about-totop:hover,
.page-about .about-totop:focus-visible {
  color: var(--bb-lime);
}

@media (prefers-reduced-motion: reduce) {
  .page-about .about-rhythm__lamp {
    animation: none;
  }
  .page-about .about-tag {
    transition: none;
  }
}

/* ---------- responsive ---------- */

@media (min-width: 560px) {
  .page-about .about-tags {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
  .page-about .about-numbers {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

@media (min-width: 760px) {
  .page-about .about-cols {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 18px 32px;
  }
  .page-about .about-cols .about-cols__lead {
    grid-column: 1 / -1;
  }
  .page-about .about-team {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
    gap: 28px;
    align-items: start;
  }
  .page-about .about-figure--team {
    margin-top: 0;
  }
}

@media (min-width: 880px) {
  .page-about .about-rhythm {
    grid-template-columns: 220px minmax(0, 1fr);
    gap: 28px;
    padding: 28px;
    align-items: start;
  }
  .page-about .about-rhythm__time {
    font-size: 52px;
  }
}

@media (min-width: 900px) {
  .page-about .about-hero__grid {
    grid-template-columns: minmax(0, 1.02fr) minmax(0, 0.98fr);
    gap: 34px;
    align-items: stretch;
  }
  .page-about .about-hero__copy {
    padding-left: 34px;
  }
  .page-about .about-hero__rail {
    display: block;
    position: absolute;
    top: 4px;
    left: 0;
    writing-mode: vertical-rl;
    font-family: var(--bb-font-mono);
    font-size: 10.5px;
    letter-spacing: 0.34em;
    color: var(--bb-muted);
    text-transform: uppercase;
  }
  .page-about .about-hero__frame {
    aspect-ratio: auto;
    min-height: 430px;
  }
  .page-about .about-chapter__head {
    grid-template-columns: 26px minmax(0, 1fr);
    gap: 18px;
    margin-bottom: 26px;
  }
  .page-about .about-chapter__num {
    writing-mode: vertical-rl;
    text-orientation: mixed;
    letter-spacing: 0.32em;
    padding-top: 2px;
  }
  .page-about .about-tags {
    grid-template-columns: repeat(5, minmax(0, 1fr));
  }
  .page-about .about-stage__sum {
    padding: 17px 52px 17px 20px;
  }
  .page-about .about-stage__body {
    padding: 0 20px 20px;
  }
}
<<<END>>>